EP2883477B1 - Lightweight furniture system - Google Patents

Description

The invention relates to a lightweight furniture system with at least one sandwich panel having at least two cover layers and a layer between the cover layers, at least in one dimension compliant layer, and an anchoring means which is anchored in a recess of the sandwich panel.

Furthermore, the invention relates to a lightweight furniture piece, in particular a cabinet that is constructed with a lightweight construction furniture system according to the invention.

The DE 10 2008 005 489 A1 discloses a mounting sleeve. So that the fastening sleeve can be loaded immediately after insertion into a sandwich panel, without having to wait for the adhesive to cure, at least one expansion element is provided on the fastening sleeve in order to engage behind a cover layer of the sandwich panel.

From the WO 2011/151758 A2 It is known to connect two panel-like elements in that in one element a slotted tongue is provided, which can be inserted into a corresponding receptacle of the other element.

In certain applications, it is desirable to make furniture from very lightweight materials that are still very stable. It is known, for example, to build furniture from lightweight panels. Such lightweight panels usually have two outer layers and between the outer layers of a resilient material, such as a honeycomb structure of paper or cardboard, on. In principle, it is also conceivable to use an intermediate layer of styrofoam or the like. The cover layers are preferably made of a material which is significantly more stable than the layer of resilient material.

The problem with these plates is that the layer of resilient material is not suitable for anchoring fasteners. For example, you can not just screw a screw in such a sandwich panel. She would not hold. Therefore, it is known to drill sandwich panels and glue anchors in the then fasteners can be screwed.

Object of the present invention is to produce a Leichtbaumöbelsystem in which can be dispensed with dowels and which can be assembled very easily.

This object is achieved according to the invention by a lightweight furniture system with the features of claim 1. The pocket milling can be formed slot-shaped, at least be larger in one dimension than in another dimension. Thereby An anchoring means can be attached so that it holds against rotation in the pocket milling. Because the anchoring means has a rear grip, it can engage behind one of the cover layers, so that no additional fastening means, in particular no dowels and no gluing, are necessary for connecting the anchoring means to the sandwich panel.

The resilient layer in at least one dimension of the sandwich panel may be a honeycomb structure, for example of paper or cardboard. Other compliant materials are conceivable, such as Styrofoam. However, in one dimension perpendicular to the plane of the sandwich panel, the layer between the facing layers is preferably non-compliant. This is especially the case when a honeycomb structure is used. A honeycomb structure is substantially compliant in a direction parallel to the plane of the sandwich panel. The sandwich panel may have a plurality of compliant layers separated by an interlayer, wherein the interlayer may be similar or similar to a cover layer.

In the lightweight construction system according to the invention, the otherwise disadvantageous resilience of the resilient layer between the cover layers is advantageously utilized. While normally no attachment in a simple manner is possible, since the resilient layer yields, according to the invention, the compliance is advantageously used, since the rear grip displaces the resilient layer when engaging the cover layer. In the case of a honeycomb structure, the honeycomb tries to straighten up again and thus provides additional wedging and tensioning of the anchoring means in the pocket milling. In particular, this results in a kind of clawing. Since the lightweight construction furniture system according to the invention without adhesive (except for sticking the Cover layers) manages, the connection of the anchoring means with the sandwich plate is also releasable again.

The anchoring means has a slot-like recess in which a cover layer is arranged in the anchoring position. This results in a particularly good connection in a direction perpendicular to the plane of the sandwich panel. Preferably, the width of the slot-like recess is matched to the thickness of the cover layer.

The slot-like recess can extend at least in one section obliquely to a plane defined by the cover layer (the plane defined by the cover layer corresponds to the previously mentioned plane of the sandwich panel). As a result, the cover layer is deformed when it is introduced into the inclined section. This results in an additional tension and claw, whereby the connection of anchoring means and sandwich plate is increased. This procedure is particularly advantageous when very thin cover layers are used. In particular, it is thus possible to use sandwich panels whose cover layers have a thickness of less than 0.8 mm, preferably up to 0.5 mm.

Displacement of the material of the compliant layer can be easily achieved if a slope is provided on the anchoring means. In particular, a kind of nose may be provided on the anchoring means, one side of the nose forming the rear handle and the other side of the nose having the bevel.

In particular, the anchoring means may be formed substantially hook-shaped.

Further advantages arise when the second cover layer or an intermediate layer is excluded in the area of pocket milling. In particular, if a honeycomb structure is used as the compliant layer, it is usually adhesively bonded between the cover layers. Glue residues could interfere with the insertion of the anchoring agent. Accordingly, if the pocket milling is milled so deeply that even a part of the second cover layer or an intermediate layer on which the honeycomb structure is arranged, are excluded during milling, this hindrance no longer exists. There is definitely enough space for the anchoring means available.

The pocket milling can have at least one notch for receiving a web of an anchoring means at its edge. This results in an additional positive connection between anchoring means and sandwich plate. For example, the edge of the pocket milling may look like two parallel long sides and two parallel short sides. The notches can be provided in the corner area. The web of an anchoring means may for example be part of a cover layer of a sandwich panel on which the anchoring means is formed.

If the anchoring means is arranged on the front side of another plate, another plate can be connected to the sandwich plate. Thus, two plates, ie the sandwich plate and the further plate can be connected at an angle of 90 ° to each other.

The anchoring means may be formed integrally with the further plate. In particular, the anchoring means may be formed by milling on the other plate. This results in a particularly stable connection of the anchoring means with the other plate.

The further plate may be formed as a sandwich plate or as a solid plate. If it is a sandwich panel, the anchoring means may be formed only by one or both of the cover layers.

In the context of the invention also falls a lightweight furniture piece, in particular cabinet, which is constructed with a lightweight furniture system according to the invention without dowels and screws. This lightweight furniture piece can be easily assembled without a template and without additional fasteners.

Further features and advantages of the invention will become apparent from the following detailed description of embodiments of the invention, with reference to the figures of the drawing, which shows essential to the invention, and from the claims. The features shown there are not necessarily to scale and presented in such a way that the features of the invention can be made clearly visible. The various features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

In the schematic drawing embodiments of the invention are shown in various stages of use and explained in more detail in the following description.

Fig. 1

zwei Sandwichplatten, ehe sie miteinander verbunden werden;

Fig. 2

zwei Sandwichplatten, während sie miteinander verbunden werden;

Fig.3a

die beiden Sandwichplatten, wobei ein Verankerungsmittel in eine Taschenfräsung eingesteckt ist;

Fig. 3b

eine Draufsicht, um die Lage des Verankerungsmittels in der Sandwichplatte zu verdeutlichen;

Fig. 4a

die beiden Sandwichplatten, nachdem sie relativ zueinander verlagert wurden;

Fig. 4b

eine Darstellung zur Verdeutlichung der Anordnung des Verankerungsmittels nach der Relativverschiebung der beiden Sandwichplatten;

Fig. 5a

ein Leichtbaumöbelstück in einer Explosionsdarstellung;

Fig. 5b

das zusammengebaute Leichtbaumöbelstück;

Show it:

Fig. 1

two sandwich panels before they are joined together;

Fig. 2

two sandwich panels while being joined together;

3a

the two sandwich panels, wherein an anchoring means is inserted into a pocket milling;

Fig. 3b

a plan view to illustrate the position of the anchoring means in the sandwich panel;

Fig. 4a

the two sandwich panels after being relocated relative to each other;

Fig. 4b

a representation to illustrate the arrangement of the anchoring means after the relative displacement of the two sandwich panels;

Fig. 5a

a lightweight furniture piece in an exploded view;

Fig. 5b

the assembled lightweight furniture piece;

The Fig. 1 shows a lightweight construction system 1 with a sandwich panel 2. The sandwich panel 2 has a first and a second cover layer 3, 4, wherein between the cover layers 3, 4, a resilient layer 5 is provided. In the exemplary embodiment, the resilient layer 5 is formed as a honeycomb structure, preferably made of paper. The walls of the honeycombs are aligned perpendicular to the planes defined by the cover layers 3, 4. However, this means that the compliant material 5 is compliant in a direction parallel to the plane of the cover layers 3, 4.

The sandwich panel 2 has a pocket milling 6. It can be seen that the pocket milling 6 is longer than it is wide. In particular, the edge of the pocket milling 6 has two long sides 7, 8 and two short sides 9, 10. Notches 11 to 14 can be seen in the corners.

At the sandwich panel 2 is another plate 15, which is also designed here as a sandwich plate to be attached. For this purpose, the plate 15 has an anchoring means 16. The anchoring means 16 has a rear handle 17 and a slot-like recess 18. Overall, the anchoring means 16 is hook-shaped. In order to facilitate the displacement of the resilient material 5, a slope 19 is provided. It can also be seen that the anchoring means 16 is arranged on the front side of the plate 15 and formed integrally therewith.

The Fig. 2 shows that for fastening the plates 2, 15 together, the anchoring means 16 of the plate 15 is inserted into the pocket groove 6, guided by the portion 20 of the anchoring means 16th

The Fig. 3a shows the situation when the anchoring means 16 has been fully inserted into the pocket groove 6. Since the width of the Taschenfräsung 6 substantially corresponds to the thickness of the plate 15, the Taschenfräsung 6 is now no longer visible. From the representation of Fig. 3b , which shows a sectional view of the plate 2, it can be seen that the anchoring means 16 is arranged in the region of the resilient layer 5. It can also be seen that the cover layer 3 is not yet engaged behind.

In order to adopt the anchoring position, the plate 15 now has to be displaced in the direction of the arrow 22 relative to the sandwich plate 2. This is in the Fig. 4a, 4b shown. In particular the Fig. 4b It can be seen that now the rear handle 17, the cover layer 3 engages behind and in particular the cover layer 3 is arranged with a portion in the slot-like recess 18. This results in a dowel-free, tack-free and screw-free connection of the two plates 2, 15th

The Fig. 5a shows an exploded view of a lightweight furniture piece 30. The side walls 31, 32 are each formed as sandwich panels. They have in different orientation pocket cutouts 33 to 36, wherein it can be seen that the width of the pocket cutouts 33 to 36 are matched to the thickness of the floors 37 to 39 or stiffeners 40, 41 or the anchoring means arranged thereon. It is particularly noteworthy that the bottom 38 is formed of solid material. In this respect, the width of the Taschenfräsung 34 is relatively narrow, so almost slot-like. Anchoring means 42 to 46 are likewise formed on the side walls 31, 32 in order to be able to establish a connection to a cover plate 47, which likewise has pocket grooves which are not visible. Here it can also be seen that the anchoring means 42 to 46 from both cover plates 48, 49 and 50, 51 and intermediate more yielding Layer 52, 53 are formed. In principle, it would also be conceivable to form the anchoring means 42 to 46 from only one of the cover layers 48, 49, 50, 51.

The assembly of the lightweight furniture piece 30 takes place in that the anchoring means, which are also formed on the parts 37 to 41, are inserted into corresponding pocket grooves 33 to 36 and then the parts to be joined are moved relative to each other, so that the anchoring means engage behind a cover layer. The assembly can thus be done without tools and on the other hand without special additional fasteners. Furthermore, the lightweight furniture piece 30 is again disassembled without damage.

The Fig. 5b shows the assembled lightweight furniture piece 30th

Claims (9)

1. Lightweight furniture system (1), comprising at least one sandwich panel (2) having at least two cover layers (3, 4) and a layer (5) which is arranged between the cover layers (3, 4) and is flexible in at least one dimension, and an anchoring means (16, 42-46, 60, 70, 80) which in an anchoring position is anchored in a recess of the sandwich panel (2), the recess being in the form of a milled pocket (6, 33-36) and the anchoring means (16, 42-46, 60, 70, 80) having a rear-engagement portion (17, 61, 62, 75, 76) which in the anchoring position engages behind a cover layer (3, 4), characterised in that the anchoring means (16, 42-46, 60, 70, 80) has a slot-like recess (18) in which, in the anchoring position, a cover layer (3, 4) is arranged.
2. Lightweight furniture system according to Claim 1, characterised in that at least one section of the slot-like recess (18) is disposed obliquely with respect to a plane defined by a cover layer (3, 4).
3. Lightweight furniture system according to either of the preceding claims, characterised in that the anchoring means (16, 42-46, 60, 70, 80) has a bevel (19, 63, 64).
4. Lightweight furniture system according to any one of the preceding claims, characterised in that the anchoring means (16, 42-46, 60, 70, 80) is substantially hook-shaped.
5. Lightweight furniture system according to any one of the preceding claims, characterised in that the second cover layer (3, 4) or an intermediate layer is recessed in the region of the milled pocket (6).
6. Lightweight furniture system according to any one of the preceding claims, characterised in that the milled pocket (6) has at its edge at least one notch (11-14) for receiving a web of an anchoring means (16, 42-46, 60, 70, 80).
7. Lightweight furniture system according to any one of the preceding claims, characterised in that the anchoring means (16) is arranged on an end face of a further panel (15).
8. Lightweight furniture system according to any one of the preceding claims, characterised in that the anchoring means (16) is formed on the further panel (15) by means of milling.
9. Lightweight piece of furniture (30), in particular cabinet, which is built up without dowels or screws using a lightweight furniture system (1) according to any one of the preceding claims.

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